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Factors influencing the aqueous solution behaviour of vinyl alcohol with vinyl acetate copolymers

✍ Scribed by F.F. Vercauteren; W.A.B. Donners; R. Smith; N.J. Crowther; D. Eagland

Publisher
Elsevier Science
Year
1987
Tongue
English
Weight
646 KB
Volume
23
Category
Article
ISSN
0014-3057

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✦ Synopsis

Variations, as a function of temperature, are reported in the magnitude of values for the partial molal volume, partial molal expansibility, flowing volume and surface pressure for dilute solutions of a series of poly(vinyl alcohol-co-vinyl acetate) copolymers of various vinyl acetate contents and acetate sequence length. The temperature range investigated, from 5 ° to 30 °, showed that, for all the examples examined, a general behaviour pattern was observed, indicating the predominance of hydrophilic interactions at temperatures below approximately 10 °, with hydrophobic interactions predominating between 10 ° and 20 °. The variations can be related to the detailed microstructure of the polymer backbone.

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